Adding to the avalanche of excitement are the final four episodes of Big Brother Season 27. Big Brother Season 27 Upcoming Schedule:Big Brother Season 27 Episode 36: Wednesday, September 24 at 10:00 p.m. ET Big Brother Season 27 Episode 39 (Finale): Sunday, September 28 at 8:30 p.m. ETHow To Watch The Big Brother 2025 Live Feeds:The Big Brother live feeds are available on Paramount+. How To Watch Big Brother Live Online:You can watch new episodes of Big Brother live on CBS, CBS.com, or with an active subscription to Paramount+ Premium.